E.S.R. good or bad ?
#2
E.S.R. good or bad ?
Have it on my wife's wheeler. The TRX-9 porting is good if you like to ride around, have overall fun and casual race. If you ride hard or hillshoot or race a lot then go with the TRX-11 porting. I can tell you that the bolt on 330 has only one overbore size available, so you wouldnt want to mess up on the jetting. Since one year ago, I have lightly honed the cylinder and put one piston in on the stock bore. Careful maintenence will last a long time since piston life is only recommended for 40 hours. But overall, there is a nice power and torque difference between the 310 and the 330. Hope this helps,Bubba
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